Question

Find The angle which a line perpendicular to the line x-y+1=0 makes with the positive direction of x-axis.

Answer 1

this is answer.............

Answer 2

Step-by-step explanation:

According to the question,the stg line makes a positive direction with x axis.......

so we know the slope is 1.

the eq^n is x-y=-1

tan x=-1

x=135